Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
first-interstate.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 21:11:04 UTC · ↺ Refresh
MX Hostnames
- firstinterstate-com01c.mail.protection.outlook.com
MX Priorities
- firstinterstate-com01c.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.10 (no PTR)
- 141.193.213.11 (no PTR)
Mail Server IPs
- 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns87.worldnic.com namehost.worldnic.com 122122714 10800 3600 604800 3600
Primary NS (mname)
ns87.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
122122714
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns87.worldnic.com
ns88.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:24.56.81.38/32 ip4:12.219.242.107/32 include:spf.protection.outlook.com include:spf.constantcontact.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- T48KYmLXYnAwm8hPx2Nch2SlIO9MqViq6a+pojlnWSaM4MgB+1gjUc3QuP54260rHmMPxAui3JlZA2xjw4KLsQ==
- SPFv=spf1 ip4:24.56.81.38/32 ip4:12.219.242.107/32 include:spf.protection.outlook.com include:spf.constantcontact.com -all
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